Advent calendar 2017

23 December

In the song The Twelve Days of Christmas, how many presents have been given after 8 days?


Show me a random puzzle
 Most recent collections 

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

List of all puzzles


cryptic crossnumbers speed digits crossnumber planes crossnumbers division parabolas scales taxicab geometry multiples people maths percentages routes cryptic clues dominos odd numbers probability shapes triangle numbers mean proportion complex numbers sequences geometry crosswords algebra angles wordplay star numbers lines integers trigonometry symmetry chalkdust crossnumber shape calculus bases folding tube maps addition remainders dodecagons digital clocks money graphs median volume cube numbers clocks prime numbers quadratics fractions range multiplication gerrymandering cards coordinates irreducible numbers 3d shapes balancing square roots surds colouring square numbers christmas spheres chess chocolate indices unit fractions floors ellipses regular shapes perimeter arrows books sport hexagons differentiation tiling the only crossnumber factorials games functions sums numbers coins sum to infinity polygons triangles number 2d shapes pascal's triangle rectangles time perfect numbers squares products palindromes elections doubling dice averages dates advent factors circles grids partitions rugby probabilty logic ave integration means area menace


Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2020